I can't even finish this book, it's so terribly written. The author uses the names of the Ingalls and Wilder families, but appears never to have read any of the writings of Laura Ingalls Wilder, Rose Wilder Lane, or Roger Lea McBride.
The story, according to the author, takes place in 1906, when Pa Ingalls rides the train from South Dakota to Missouri to visit Laura. In actuality, Charles Ingalls died in 1902. Laura took the train from Missouri to South Dakota to be with him in his final days. In the book, he also calls her "Laurie." In no writing of any of the authors associated with Laura in real life is she ever referred to by this name. Laurie, during Pa's lifetime, was a boy's name, derived from Laurence. Neither Pa nor Ma would have ever used a boy's name for Laura. And the story has Pa constantly fingering a "lucky" fifty-dollar gold piece. If Pa had a fifty-dollar gold piece, he would have had it in his pocketbook, not flashing it around, inviting robbery. And calling it "lucky" would have been seen as superstitious at best, idolatrous at worst, in the moral code of his time.
If an author is going to use real people, even in a novel, said author should keep it close enough to actual facts that disbelief can be suspended. Just getting the dates wrong turns the entire book into a pack of lies.